If You Forgot Your Screen Lock Combination Or Password Follow These Steps.Warning !All Data Will Be Lost!1.Press Together Volume Up + Power Button2.Release Your Fingers Of The Phone When Nokia Logo Appear And Keep Pressing Volume Up3.Choose With Volume Buutons "wipe Data/factory Reset" And Select It With Power Button5.Choose "yes" With Volume Buttons And Select It With Power Button6.Wait Untiil Format Is Complete7.Select "reboot"Done :)